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Which of the following should most favor the solubility of an ionic solid in water? Note: high and low refers to the magnitudes (i.e. the absolute value) of lattice and hydration energiesA. a small lattice energy for the solid and a small hydration energy for its ions B. a small lattice energy for the solid and a large hydration energy for its ions C. a large lattice energy for the solid and a small hydration energy for its ions D. a large lattice energy for the solid and a large hydration energy for its ions

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Answer:

. a small lattice energy for the solid and a large hydration energy for its ions

Explanation:

Lattice energy refers to the energy that binds the ions together in the crystal lattice. This same energy must be supplied for the !active to disintegrate and release the ions to form a solution a solution by solvation involving solvent ions or dipoles. The hydration energy is the energy released on solvation of the ionic solid by the solvent. If the energy released during hydration is less than the lattice energy, the ionic solid cannot dissolve in the solvent since the hydration energy provides the energy required to collapse the ionic lattice and release the ions.

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